Having an understanding of interpersonal relationships is helpful in many contexts. Our system seeks to assist humans with that task, using textual information (e.g., case notes, speech transcripts, posts, books) as input. Specifically, our system first extracts qualitative and quantitative information elements (which we call signals) about interactions among persons, aggregates those to provide a condensed view of relationships and then enables users to explore all facets of the resulting social (multi-)graph through a visual interface.
Abstract-Text segmentation (TS) aims at dividing long text into coherent segments which reflect the subtopic structure of the text. It is beneficial to many natural language processing tasks, such as Information Retrieval (IR) and document summarisation. Current approaches to text segmentation are similar in that they all use word-frequency metrics to measure the similarity between two regions of text, so that a document is segmented based on the lexical cohesion between its words. Various NLP tasks are now moving towards the semantic web and ontologies, such as ontology-based IR systems, to capture the conceptualizations associated with user needs and contents. Text segmentation based on lexical cohesion between words is hence not sufficient anymore for such tasks. This paper proposes OntoSeg, a novel approach to text segmentation based on the ontological similarity between text blocks. The proposed method uses ontological similarity to explore conceptual relations between text segments and a Hierarchical Agglomerative Clustering (HAC) algorithm to represent the text as a tree-like hierarchy that is conceptually structured. The rich structure of the created tree further allows the segmentation of text in a linear fashion at various levels of granularity. The proposed method was evaluated on a wellknown dataset, and the results show that using ontological similarity in text segmentation is very promising. Also we enhance the proposed method by combining ontological similarity with lexical similarity and the results show an enhancement of the segmentation quality.
Deep Generative Models (DGMs) allow users to synthesize data from complex, high-dimensional manifolds. Industry applications of DGMs include data augmentation to boost performance of (semi-)supervised machine learning, or to mitigate fairness or privacy concerns. Large-scale DGMs are notoriously hard to train, requiring expert skills, large amounts of data and extensive computational resources. Thus, it can be expected that many enterprises will resort to sourcing pre-trained DGMs from potentially unverified third parties, e.g. open source model repositories.
Abstract. The World Wide Web (WWW) provides access to a vast array of digital content, a great deal of which could be ideal for incorporation into eLearning environments. However, reusing such content directly in its native form has proven to be inadequate, and manually customizing it for eLearning purposes is labor-intensive. This paper introduces Slicepedia, a service which enables the discovery, reuse and customization of open corpus resources, as educational content, in order to facilitate its incorporation into eLearning systems. An architecture and implementation of the system is presented along with a preliminary user-trial evaluation suggesting the process of slicing open corpus content correctly decontextualises it from its original context of usage and can provide a valid automated alternative to manually produced educational resources.
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